When I rotated the 'camera' along the Y-axis about 90 degrees to the left, and then tried to rotate up I just got a clock-wise spin. So then I tried rotating the vectors that I use to rotate around, but somehow, I still get the clockwise spin. Can anyone tell me what I'm doing wrong? This is the code for my rotations and for my vector rotations.
vec=RotVect(xcma,ycma,zcma,0.,1.,0.);
glRotated(-ycma,vec.x,vec.y,vec.z);
vec=RotVect(xcma,ycma,zcma,1.,0.,0.);
glRotated(-xcma,vec.x,vec.y,vec.z);
vec=RotVect(xcma,ycma,zcma,0.,0.,1.);
glRotated(-zcma,vec.x,vec.y,vec.z);
Vect RotVect(double xa, double ya, double za, double x, double y, double z){
Vect vt;
double cy=cos(ya*deg), sy=sin(ya*deg), cx=cos(xa*deg), sx=sin(xa*deg), cz=cos(za*deg), sz=sin(za*deg);
vt.x= (x*cy+z*sy);
vt.y= (y);
vt.z= (-x*sy+z*cy);
x= (vt.x);
y= (vt.y*cx-vt.z*sx);
z= (vt.y*sx+vt.z*cx);
vt.x= (x*cz-y*sz);
vt.y= (x*sz+y*cz);
vt.z= (z);
return vt;
}
